執行`cd ~/Homestead && vagrant up`開啟虛擬機出現以下錯誤 ``` Timed out while waiting for the machine to boot. This means that Vagrant was unable to communicate with the guest machine within the configured ("config.vm.boot\_timeout" value) time period. If you look above, you should be able to see the error(s) that Vagrant had when attempting to connect to the machine. These errors are usually good hints as to what may be wrong. ... ``` 進入你的BIOS，然后將virtualization（CPU虛擬化）設置為enable即可 BIOS界面：Configuratio > Intel Virtual Technology > Enabled